231342413 has 4 divisors (see below), whose sum is σ = 236264640. Its totient is φ = 226420188.

The previous prime is 231342383. The next prime is 231342431. The reversal of 231342413 is 314243132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231342413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2461043 + ... + 2461136.

It is an arithmetic number, because the mean of its divisors is an integer number (59066160).

Almost surely, 2^231342413 is an apocalyptic number.

It is an amenable number.

231342413 is a deficient number, since it is larger than the sum of its proper divisors (4922227).

231342413 is an equidigital number, since it uses as much as digits as its factorization.

231342413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922226.

The product of its digits is 1728, while the sum is 23.

The square root of 231342413 is about 15209.9445429627. The cubic root of 231342413 is about 613.8822653015.

Adding to 231342413 its reverse (314243132), we get a palindrome (545585545).

The spelling of 231342413 in words is "two hundred thirty-one million, three hundred forty-two thousand, four hundred thirteen".